1. Paediatric Dentistry, Charles Clifford Dental Hospital, Wellesley Road, Sheffield S10 2SZ
2. Dean, Professor/Honorary Consultant in Paediatric Dentistry, Academic Unit of Oral Health, Dentistry and Society, School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield S10 2TA
3. Professor/Honorary Consultant in Paediatric Dentistry, School of Dentistry Cardiff University, Cardiff and Vale University Health Board, Cardiff, CF14 4XY
4. Consultant in Dental and Maxillofacial Radiology, University Dental Hospital, Cardiff and Vale University Health Board, Cardiff, CF14 4XY, UK